That description is extremely vague, so there is little point in getting into detailed answers. It too much depends on the look you are after and from which viewpoint the whole scenery is supposed to be seen. From simple gradients for the sky to heavy use of fractal noise for clouds and waves, with or without effects like Freeform, there is endless possibilities to do this without any extra plug-ins. Provide an example of the look you have in mind and then perhaps we can provide better guidance.
Hi Mr. Mylenium
Thx for qucik response, Sorry for insufficient information from me, actually I want to show aurora sky effect,
and ur right using fractal noise n freeform i can achieve the same, but how can i make those rays blur at the top?
this is what i want to create http://www.youtube.com/watch?v=HJAIUcys1hU
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An Aurora Borealis can be easily created using a mask path that has a Stroke effect, followed by a CC Vector Blur set to Perpendicular mode and dialing in a suitable angle value. To make it wobble, you can simply add Turbulent Displace or animate the mask shape more structure can be added by using Roughen Edges and additional Fractal Noise effects.
Mr. Mylenium, I'll follow ur guidelines, I was wondering about vector blur which is not included in CS5 but I got the discussion on the forum
once again thank u
will show u the result
Thank u again
I got Licensed Production Premium CS5, Vector blur is there I just started working on the project, thanks for sharing valuable information,
if i need any extra help/information I'll ask u
Thank u very much Mr. Mylenium